Re: [RSN] Sleepy routers
Kris Pister <pister@eecs.berkeley.edu> Fri, 07 December 2007 19:25 UTC
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Date: Fri, 07 Dec 2007 11:24:39 -0800
From: Kris Pister <pister@eecs.berkeley.edu>
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To: Ian Chakeres <ian.chakeres@gmail.com>
Subject: Re: [RSN] Sleepy routers
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I don't know if we need to address it directly, but I think that one of the really interesting questions is how to route over (one or more) L2s that have at least three orders of magnitude *configurable* tradeoff between two parameters of interest: data rate and lifetime. There are WSN protocols in use today which can be configured to operate anywhere from 100% duty cycle down to well under 0.1%, on a link-by-link basis. The simplest approach is to route with what is currently configured, and push the responsibility for configuration changes elsewhere. Perhaps there are existing protocols that do this? It seems like some of the existing traffic engineering work might be relevant. For example, I may know due to ND that I can talk directly to the final destination, but currently have no bandwidth configured (or not already spoken for) to do so. Where does the tradeoff between QoS, user preferences for node lifetime, routing, and L2 duty cycle configuration happen? I don't know how much, if any, of this fits in the scope of RoLL. In any case, it is interesting to study. ksjp Ian Chakeres wrote: > >From the proposed charter and name of the group I know that low-power > and lossy are two important components. I was wondering whether these > routers sleeping most (95%+) of the time should also be elevated to > this status. > > What do you think? Is the fact that routers are sleeping a lot one of > the core issues that needs to be solved in this WG? > > Ian > > > _______________________________________________ > RSN mailing list > RSN@ietf.org > https://www1.ietf.org/mailman/listinfo/rsn > _______________________________________________ RSN mailing list RSN@ietf.org https://www1.ietf.org/mailman/listinfo/rsn
- [RSN] Sleepy routers Ian Chakeres
- Re: [RSN] Sleepy routers Timothy J. Salo
- Re: [RSN] Sleepy routers Kris Pister
- Re: [RSN] Sleepy routers Geoff Mulligan
- Re: [RSN] Sleepy routers Geoff Mulligan
- Re: [RSN] Sleepy routers JP Vasseur